[vtkusers] Design question (dataset relationship)

[Sebastien BARRE]

Hi

Has anyone already worked on modeling/implementing relationships between 
PointSets of different topologies ?

Let's say that I have a PointSet A, and many other PointSet B1, B2, ... Bn.

I'd like to find, for every point P of A, the closest point P' that might 
be in B1, B2 or, .. Bn.

Thus, I need to store the Id of the closest point in Bi, as well as the 
PointSet Bi it belongs to.

Any suggestions ?
FieldData ?